Stability AI

Stability AI builds open-weight image, video and audio generation models, best known for Stable Diffusion. Creators, developers and enterprises use them self-hosted and via API. It released Stable Diffusion 3.5 and Stable Audio 2.0 and continued shipping updates through 2025.

Ecosystem functionPioneered open-weight image generation and created one of the largest self-hosted inference ecosystems in existence.

Business modelModel licensing and enterprise API